Index Catalog // ScholarsArchive@OSU

So Long and Thanks for All the Sponge: Cryptic Intertidal Communities, Consequences of Ocean Acidification, and New Directions for Science Education

Creator:: Rickborn, Alissa J.
Abstract:: The current generation of scientists will be asked to mitigate climate change, stall biodiversity loss, and protect ecological communities. These are tasks that require a knowledge of both ecological and social systems to be undertaken successfully. Therefore, my dissertation spans the fields of community ecology and social sciences in an...
Resource Type:: Dissertation

Effects of ocean acidification on growth rate, calcified tissue, and behavior of the juvenile ochre sea star, Pisaster ochraceus

Creator:: Britsch, Melissa L.
Abstract:: Anthropogenically-induced increases in the acidity of the ocean have the potential to seriously harm marine calcifying organisms by decreasing the availability of carbonate (CO32−) used to make shells. I tested the effects of lowered pH on juvenile Pisaster ochraceus, an intertidal sea star and keystone predator in the eastern Pacific...
Resource Type:: Honors College Thesis

The effects of interspecies interactions and environmental conditions on biomass accumulation of sessile organisms within Oregon’s rocky mid-intertidal habitats

Creator:: Carsh, Alexander C.
Abstract:: With changing climate conditions and human impacts on ecosystems becoming a big focus of study, it has become even more crucial to understand how our ecosystems work. Community structure within rocky intertidal habitats is governed by a mix of environmental conditions and species interactions. This project examined the effects of...
Resource Type:: Honors College Thesis

The role of avian predators in an Oregon rocky intertidal community

Creator:: Marsh, Christopher P.
Abstract:: Birds affected the community structure of an Oregon rocky shore by preying upon mussels (Mytilus spp.) and limpets (Collisella spp.). The impact of such predation is potentially great, as mussels are the competitively dominant mid-intertidal space-occupiers, and limpets are important herbivores in this community. Prey selection by birds reflects differences...
Resource Type:: Dissertation

Succession and stability in two rocky intertidal communities on the central Oregon coast

Creator:: Farrell, Terence M.
Abstract:: The stability of a limpet-dominated community was assessed in a experiment in which an consumer was temporarily removed. Compared to unmanipulated plots, the limpet-exclusion plots developed greater algal abundance and altered species composition of both algae and barnacles. The community was not perturbed beyond its capacity to recover, since the...
Resource Type:: Dissertation

Marine herbivore-plant interactions : the feeding ecology of the sea slug Placida dendritica

Creator:: Trowbridge, Cynthia D.
Abstract:: The feeding ecology of a common temperate mesoherbivore, the oligophagous sea slug Placida dendritica (Gastropoda: Opisthobranchia: Ascoglossa), was examined from April 1985 to June 1989. Along the central coast of Oregon, Placida consumed three host species: the low intertidal green algae Codium setchellii, C. fragile, and Bryopsis corticulans. Individual slugs...
Resource Type:: Dissertation

Heat-shock protein expression in Mytilus californianus : seasonal and tidal height comparisons

Creator:: Roberts, Deirdre
Resource Type:: Masters Thesis

The effects of biomechanical and ecological factors on population and community structure of wave-exposed, intertidal macroalgae

Creator:: Blanchette, Carol A.
Abstract:: I examined the biomechanical factors that influence the sizes of intertidal macroalgae by studying a population of Fucus gardneri at Fogarty Creek Point, OR. I constructed a mathematical model to predict optimal sizes and probabilities of survival for Fucus under conditions of high and low wave exposure. Predicted optimal sizes...
Resource Type:: Dissertation

Bottom-up and top-down forces in tidepools : the influence of nutrients, herbivores, and wave exposure on community structure

Creator:: Nielsen, Karina Johanna
Abstract:: The relationship between nutrients and community structure is poorly understood in open-coast habitats. I created a system of artificial tidepools, of identical age and physical dimensions, at two sites that differed in wave exposure, and manipulated nutrient levels and the abundance of herbivores. Using these unique field mesocosms, I explored...
Resource Type:: Dissertation

Effects of Hypoxia on Survival and Growth of Barnacle Larvae Off the Oregon Coast

Creator:: Amstutz, Amanda C.
Abstract:: In recent years off the United States Oregon coast severe hypoxic events have resulted in areas of mass vertebrate and invertebrate species mortality known as dead zones. Creation of dead zones and alteration of community species composition in response to inner shelf hypoxic conditions have been observed annually from 2002...
Resource Type:: Honors College Thesis

ScholarsArchive@OSU

So Long and Thanks for All the Sponge: Cryptic Intertidal Communities, Consequences of Ocean Acidification, and New Directions for Science Education

Effects of ocean acidification on growth rate, calcified tissue, and behavior of the juvenile ochre sea star, Pisaster ochraceus

The effects of interspecies interactions and environmental conditions on biomass accumulation of sessile organisms within Oregon’s rocky mid-intertidal habitats

The role of avian predators in an Oregon rocky intertidal community

Succession and stability in two rocky intertidal communities on the central Oregon coast

Marine herbivore-plant interactions : the feeding ecology of the sea slug Placida dendritica

Heat-shock protein expression in Mytilus californianus : seasonal and tidal height comparisons

The effects of biomechanical and ecological factors on population and community structure of wave-exposed, intertidal macroalgae

Bottom-up and top-down forces in tidepools : the influence of nutrients, herbivores, and wave exposure on community structure

Effects of Hypoxia on Survival and Growth of Barnacle Larvae Off the Oregon Coast

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